Nyepi is a day of silence in Hindu's religion. Especially in Bali, Indonesia, which majorities are Hindus, all types of work should be stopped and all people have to stay at home and getting out to street is strictly prohibited. In the evening, lamps and anything that have light incl.fire, must be turned off.

It's a totally unique day in Bali. It inspires me to create this one

The process of making can be read here (sorry, in Indonesian though): [link]